Hot-water heater.



A. E. BICKNELL.

Patented Mar. 11, 1919.

2 SHEETSSHEET 1.

f 6 k w l/VVE/VTOR fi. ZB/C/T/VEL L.

A TTOH/VEY A. E. BICKNELL.

HOT WATER HEATER.

APPLICATION FILED FEB.I4.19I8.

1,296,909., Patentefi Mar. 11,1919.

2 SHEETS-SHEET 2.

IIWEIVTOH l1 TTOR/VEY ATES AT union.

ALVIE E. BICKNELL, OF INDIANAPOLIS, INDIANA.

HOT-WATER HEATER.

To all whom it may concern:

Be it known that I, ALVIE E. BrcKNEIm, a citizen of the United States, residing at In 'dianapolis, in the county of Marion and fication.

My present invention relates to improvements in hot water heaters, of the type involving in its construction uppervand lower 4 drums and vertical water tubes with central fuel magazine.

The primary object of the invention is the provision of a hot water heater of the type,

' adapted for utilizing as fuel either hard or faces resulting from the arrangement and soft coal, and having extensive heating surcombination of parts in such manner that a maximum of heat is generated and radiated to the watersurrounding the heated parts,

as will be hereinafter more fully described and claimed.

In the accompanying drawings one complete example of the physical embodiment of the invention is' illustrated, constructed according to the best mode I have so far devised for the practical application of the tional view of the heater or furnace, on line 22 of Fig. 1. V

' Fig. 3 is a fragmentary, sectional view at line 33 of Fig. 1, and

Fig. 4 is a fragmentary, sectional view, at line H of Fig. 1.

In the preferred embodiment of the invention as illustrated in the drawings, a water heater or furnace using coal (either hard or soft) is used, the base ring 1, and all other similar parts, being of either cast iron or pressed steel, and to this open'base ring the fire box2 is bolted, as at 3. The fire box is also of cast iron or pressed steel, some- What the shape of an inverted, truncatedcone and fashioned with the outwardly flaring flange or ring 4, which ring has attached thereto, as by rivets, the cylindrical jacket 5, preferably of boiler plate, and rising vertically above the firebox-ring. The upper end of this jacket has attached thereto the flanged head 6, rivets 7 being used to se cure the jacket and head rigidly and tightly Specification of Letters Patent.

Patented Mar. 11,1919.

Application filed February 14, 1918. Serial No. 217,101.

together. A. second'water jacket is also used in the construction of the heater, as indicated at 8, this jacket being riveted at 9 to the head ring 6 and extending, centrally, and downwardly into the larger jacket 5.

This second water jacket surrounds the inverted, conical shape magazine 10, and the space between these two members, at the bottom, is closed by a small head or ring 11. The magazine and the jacket have their smaller, lower ends located the proper distance above the fire box, and it will be apparent that the outwardly flaring, conical wall of the jacket will be an effective deflectorin guiding the flames and gases of combustion upwardly from the firebox, the grate line for supporting the coal in the fire box being indicated at 12 in Fig. 1. At its upper open end, the walls of the conical magazine merge with. the upper drum or smoke box 13, the magazine walls also of boiler plate, beingriveted at 15 to thetop ring 16. This flat ring lfi is supported by the outer, cylindrical casing 17 of boiler plate, an annular gasket or ring 18 being riveted at 20 to the casing, and bolted at 21 to the top,.ring. At its lower end the casing is riveted at'22 to the base ring, and as the casing surrounds the entire device, with the exception of the upper drum or smoke box, it forms about the fire box, a mud drum 23 forwater, a water jacket 24:, and the upper water drum 25 surrounding the magazine and above the wall of the outer water jacket. The hot water pipes 26 lead from the upper water drum to the radiators in the various rooms or places to be heated, and the return pipes 27 open into the lower Water drum or mud drum 23 about the fire box.

One of the special features of the construction of this heater is the utilization of the converging arrangement of water tubes 28 that are fixed, by either welding or expanding, in the flange l of the fire box and the small head or ring'11 of the magazine. These tubes are spaced apart and extend across the intervening space between the larger upper end of the fire box, and the comparatively small end or throat of the magazine containing the fuel, so that the fumes, gases of combustion, or flames, emerging from, or emitted by the fuel as it burns, pass directly between these tubes and around them and they are thus arranged to expose their contained water to the action of the heat. 'A second annularly arranged series of water tubes 29, surround the first or inner series, and part of the magazine, and the whole of the magazine waterjacket, These tubes are also inclined toward each other, or are located on converging lines, and the tubes are welded or expanded in the flange 4 and i the head or large ring ,6. These two series of water tubes provide for a continual and effective circulation, the shorter tubes connecting the lower mud drum with the magazine water jacket, and the longer tubes connecting the mud drum with the upper water drum 25. apparent that the flames pass through both the short and longer series of water tubes,

and from thence the flames, gases, and fumes pass upwardly from the combustion chamber 8, in which are located the water tubes, thence through the fire or smoke flues into the smok box 13, and from there are carried ofl through the smoke pipes 31 to the chimney.

The arrangement and construction of the furnace or heater above described, gives free access to the several parts, particularly the interior parts which contain the water tubes and smoke flues, so that repairs may a readily be made without the necessity for disconnecting the heating system from the main portions of the boiler. It will be obvious that practically all parts of the boiler are effective in radiating heat so that the water maybe heated quickly and effectively, and the rapid and free circulation of water throughout the several parts 01"? the boiler, as vdescribed, provide a thoroughly practical heating system givi g maximum heat with a minimum of fuel.

The heater does not contemplate the use of fuel doors, but is of the magazine feed yp or the fu he k ndl ng be ng f into the firebox through the magazine, and

It will be then the magazine is filled as usual to supconju nction withthe casing, a central inverted conical magazine above the firebox, a head ring closing the upper end of the cylindrical drum and an inverted conicalj acket wall secured to said head, surrounding the mag z n forming a ate ja ket ther about, a series of water tubes connecting he m d dr m and magazine Water 1acket,

a smoke box surrounding the upper end of he l magazine, a d smo e fine o n ing said smoke box and the interior of the cylindrical drum, and said drum being in open communication with the fire boX.

2-. The combination in a water heater with a casing, of an open, central firebox and an enlarged drum superposed thereon to form a mud d u ben th the en arged dru and a water jacket in conjunction with the an openho tomi entra maga i'ne f mi g a smoke b x i th uppern bf th casing, and. projecting into the enlarged drum, there being a water drum formedbetween said smok drum and the enlarged drum, a water jacket within the enlarged drum surrounding 'the magazine, water pipes connecting the mud drum and maga- Z a e ja ket and ar ange in n mi lar series to bridge the space between the firebox and th bottom f the magazin Smoke fines nnecting the enl rgedkl m and smoke boX, and return nections. V V V In t st mony h reof I afi my s gna re- AL IIE BIGKNELL-- water p pe con-r Copies of this patent may be obtained for five cents each, by addressing the (Commissioner of Eatents,

' Washington, DQGL i 

